On Tuesday, code-analysis software maker Coverity announced that its automated bug finding tool had analyzed the community-built operating system FreeBSD and flagged 306 potential software flaws, or about one issue for every 4,000 lines of code. The low number of flaws found by the system underscores that FreeBSD's manual auditing by project members has reduced the vulnerabilities in the operating system, said Seth Hallem, CEO of Coverity.